move admin config to top-level

admins.nix

@@ -0,0 +1,8 @@
+{
+  dadada = {
+    shell = "zsh";
+    keys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJyTgdVPPxQeL5KZo9frZQlDIv2QkelJw3gNGoGtUMfw tim@metis"
+    ];
+  };
+}

keys/dadada.pub

@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJyTgdVPPxQeL5KZo9frZQlDIv2QkelJw3gNGoGtUMfw tim@metis

nixos/configurations.nix

@@ -1,4 +1,5 @@
 { self
+, admins
 , nixpkgs
 , nixosSystem
 , home-manager
@@ -8,15 +9,20 @@
 , scripts
 , recipemd
 }:
-let adapterModule = system: {
-  nixpkgs.config.allowUnfreePredicate = (pkg: true);
-  nixpkgs.overlays = (nixpkgs.lib.attrValues self.overlays) ++ [
-    (final: prev: { homePage = homePage.defaultPackage.${system}; })
-    (final: prev: { s = scripts; })
-    (final: prev: { n = nvd; })
-    (final: prev: { recipemd = recipemd.defaultPackage.${system}; })
-  ];
-};
+let
+  adapterModule = system: {
+    nixpkgs.config.allowUnfreePredicate = (pkg: true);
+    nixpkgs.overlays = (nixpkgs.lib.attrValues self.overlays) ++ [
+      (final: prev: { homePage = homePage.defaultPackage.${system}; })
+      (final: prev: { s = scripts; })
+      (final: prev: { n = nvd; })
+      (final: prev: { recipemd = recipemd.defaultPackage.${system}; })
+    ];
+  };
+  lib = nixpkgs.lib;
+  adminConfig = users: {
+    dadada.admin.users = lib.getAttrs users admins;
+  };
 in
 {
   gorgon = nixosSystem rec {
@@ -40,6 +46,7 @@ in
   ifrit = nixosSystem rec {
     system = "x86_64-linux";
     modules = (nixpkgs.lib.attrValues self.nixosModules) ++ [
+      (adminConfig [ "dadada" ])
       (adapterModule system)
       ./modules/profiles/server.nix
       ./ifrit/configuration.nix
@@ -49,6 +56,7 @@ in
   surgat = nixosSystem rec {
     system = "x86_64-linux";
     modules = (nixpkgs.lib.attrValues self.nixosModules) ++ [
+      (adminConfig [ "dadada" ])
       (adapterModule system)
       ./modules/profiles/server.nix
       ./surgat/configuration.nix
@@ -57,6 +65,7 @@ in
   pruflas = nixosSystem rec {
     system = "x86_64-linux";
     modules = (nixpkgs.lib.attrValues self.nixosModules) ++ [
+      (adminConfig [ "dadada" ])
       (adapterModule system)
       ./modules/profiles/laptop.nix
       ./pruflas/configuration.nix
@@ -66,6 +75,7 @@ in
   agares = nixosSystem rec {
     system = "x86_64-linux";
     modules = (nixpkgs.lib.attrValues self.nixosModules) ++ [
+      (adminConfig [ "dadada" ])
       (adapterModule system)
       ./modules/profiles/server.nix
       ./agares/configuration.nix

nixos/modules/admin.nix

@@ -3,6 +3,38 @@
 with lib;
 let
   cfg = config.dadada.admin;
+  extraGroups = [ "wheel" "libvirtd" ];
+
+  shells = {
+    "bash" = pkgs.bashInteractive;
+    "zsh" = pkgs.zsh;
+    "fish" = pkgs.fish;
+  };
+
+  shellNames = builtins.attrNames shells;
+
+  adminOpts = { name, config, ... }: {
+    options = {
+      keys = mkOption {
+        type = types.listOf types.str;
+        default = [ ];
+        apply = x: assert (builtins.length x > 0 || abort "Please specify at least one key to be able to log in"); x;
+        description = ''
+          The keys that should be able to access the account.
+        '';
+      };
+      shell = mkOption {
+        type = types.nullOr types.str;
+        apply = x: assert (builtins.elem x shellNames || abort "Please specify one of ${builtins.toString shellNames}"); x;
+        default = "zsh";
+        defaultText = literalExpression "zsh";
+        example = literalExpression "bash";
+        description = ''
+          One of ${builtins.toString shellNames}
+        '';
+      };
+    };
+  };
 in
 {
   options = {
@@ -10,12 +42,12 @@ in
       enable = mkEnableOption "Enable admin access";
 
       users = mkOption {
-        type = with types; attrsOf (listOf path);
-        default = [ ];
+        type = with types; attrsOf (submodule adminOpts);
+        default = { };
         description = ''
-          List of admin users with root access to all the machine.
+          Admin users with root access machine.
         '';
-        example = literalExample "\"user1\" = [ /path/to/key1 /path/to/key2 ]";
+        example = literalExample "\"user1\" = { shell = pkgs.bashInteractive; keys = [ 'ssh-rsa 123456789' ]; }";
       };
 
       rat = mkOption {
@@ -29,28 +61,27 @@ in
   };
 
   config = mkIf cfg.enable {
+    programs.zsh.enable = mkDefault true;
+
     services.sshd.enable = true;
     services.openssh.passwordAuthentication = false;
     security.sudo.wheelNeedsPassword = false;
+    services.openssh.openFirewall = true;
 
     users.users = mapAttrs
-      (user: keys: (
-        {
-          extraGroups = [
-            "wheel"
-            "libvirtd"
-          ];
-          isNormalUser = true;
-          openssh.authorizedKeys.keyFiles = keys;
-        }))
+    (user: keys: (
+      {
+        shell = shells."${keys.shell}";
+        extraGroups = extraGroups;
+        isNormalUser = true;
+        openssh.authorizedKeys.keys = keys.keys;
+      }))
       cfg.users;
 
     nix.trustedUsers = builtins.attrNames cfg.users;
 
     users.mutableUsers = mkDefault false;
 
-    networking.firewall.allowedTCPPorts = [ 22 ];
-
     environment.systemPackages = with pkgs; [
       vim
       tmux

nixos/modules/profiles/server.nix

@@ -1,17 +1,11 @@
 { config, pkgs, lib, ... }:
 with lib;
-let
-  keys = [ ../../../keys/dadada.pub ];
-in {
+{
   networking.domain = mkDefault "dadada.li";
   networking.tempAddresses = "disabled";
 
-  dadada.admin.users = {
-    "dadada" = keys;
-  };
-
+  dadada.admin.enable = true;
   dadada.networking.localResolver.enable = true;
-
   dadada.autoUpgrade.enable = mkDefault true;
 
   environment.noXlibs = mkDefault true;

nixos/pruflas/configuration.nix

@@ -1,8 +1,6 @@
 { config, pkgs, lib, ... }:
 with lib;
-let
-  keys = [ ../../keys/dadada.pub ];
-in {
+{
   imports = [ ./hardware-configuration.nix ];
 
   networking.hostName = "pruflas";
@@ -103,10 +101,6 @@ in {
 
   networking.domain = "dadada.li";
 
-  dadada.admin.users = {
-    "dadada" = keys;
-  };
-
   users.mutableUsers = true;
 
   dadada.networking.localResolver.enable = true;

nixos/surgat/configuration.nix

@@ -35,13 +35,6 @@ in
     };
   };
 
-  dadada.admin = {
-    enable = true;
-    users = {
-      "dadada" = [ ../../keys/dadada.pub ];
-    };
-  };
-
   dadada.element.enable = true;
   dadada.gitea.enable = true;
   dadada.networking.vpnExtension = "4";

outputs.nix

@@ -58,12 +58,11 @@
   hmModules = import ./home/modules inputs;
   nixosConfigurations = import ./nixos/configurations.nix {
     nixosSystem = nixpkgs.lib.nixosSystem;
+    admins = import ./admins.nix;
     inherit self nixpkgs home-manager nixos-hardware nvd scripts homePage recipemd;
   };
   nixosModules = import ./nixos/modules inputs;
   overlays = import ./overlays;
-  keys = ./keys;
-
   hydraJobs = (
     nixpkgs.lib.mapAttrs'
       (name: config: nixpkgs.lib.nameValuePair name config.config.system.build.toplevel)